Patent US2842260A successfully refreshed from Google Patents.
US874908A
Expired / Lapsed
US
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Apparatus or means for the production, transmission, and distribution of electric currents.
Assignee: SPENCER B PRENTISS
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Filing: 1886-11-23
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Granted: 1907-12-24
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Expires: 1906-11-23
Abstract
No abstract record available.
Inventors
- 👤 Charles E Fritts
- 👤 Josephine H Fritts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:38
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/02; H02M3/04; H02M3/06; H02M3/07; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49076
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1910-12-23 | 1911-06-24 | 1911-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-12-23 | 1915-06-24 | 1915-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-12-23 | 1919-06-24 | 1919-12-24 | $7700.00 | Window Closed / Lapsed |